Finding the Fourth Proportional to 345,107.62, 476,175.30 and 217,709.38
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Solution
The fourth proportional to 345,107.62, 476,175.30 and 217,709.38 is: 300,392.75
Step by Step Solution
- Step 1: Write the proportion equation
345,107.62 : 476,175.30 = 217,709.38 : x - Step 2: Convert to fraction form
345,107.62/476,175.30 = 217,709.38/x - Step 3: Cross multiply
345,107.62x = 476,175.30 × 217,709.38 - Step 4: Simplify right side
345,107.62x = 103,667,826,953.44 - Step 5: Solve for x
x = 103,667,826,953.44/345,107.62 - Step 6: Final answer
x = 300,392.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.